friedmud / ragusa_class

Short Adaptivity and Transient Demonstration

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This was built based on Example ex05 from MOOSE to show a quick demonstration of how to add adaptivity and transient analysis (and a mixture of both) to a simulation.

You will find the input files under problems and a presentation that talks about mesh adaptivity and transient analysis in presentation.

In addition, Cubit was used to generate the geometry for this demonstration. You can find the Cubit journal file and resulting Exodus file under geom.

The input files are as follows:

• 01_steady.i: Just the simple steady state solution of a coupled convection diffusion problem
• 02_steady_adapt.i: Adding in some mesh adaptivity with a number of adaptive steps to get a better solution to the steady state problem
• 03_transient.i: Switching to a Transient Executioner and adding a time derivative
• 04_transient_adapt.i: Adding a little bit of adaptivity. But notice that the solution is not good for the first few timesteps because of the coarse mesh
• 05_transient_adapt_with_uniform.i: Add some initial uniform refinement to capture the first few stpes well. Allow coarsening to remove that initial refinement.